From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28997C433DB for ; Tue, 26 Jan 2021 18:57:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9F04122B37 for ; Tue, 26 Jan 2021 18:57:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9F04122B37 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C574C8D0103; Tue, 26 Jan 2021 13:57:12 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C07258D00F8; Tue, 26 Jan 2021 13:57:12 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B1D398D0103; Tue, 26 Jan 2021 13:57:12 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0064.hostedemail.com [216.40.44.64]) by kanga.kvack.org (Postfix) with ESMTP id 9D8D88D00F8 for ; Tue, 26 Jan 2021 13:57:12 -0500 (EST) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 5C27D3626 for ; Tue, 26 Jan 2021 18:57:12 +0000 (UTC) X-FDA: 77748833904.19.sand49_410d8f627590 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin19.hostedemail.com (Postfix) with ESMTP id 364F81AD1B5 for ; Tue, 26 Jan 2021 18:57:12 +0000 (UTC) X-HE-Tag: sand49_410d8f627590 X-Filterd-Recvd-Size: 2788 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Tue, 26 Jan 2021 18:57:11 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 8FDD5AC97; Tue, 26 Jan 2021 18:57:09 +0000 (UTC) Subject: Re: [PATCH v2 01/10] mm: use add_page_to_lru_list() To: Yu Zhao , Andrew Morton , Hugh Dickins , Alex Shi Cc: Michal Hocko , Johannes Weiner , Vladimir Davydov , Roman Gushchin , Matthew Wilcox , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20210122220600.906146-1-yuzhao@google.com> <20210122220600.906146-2-yuzhao@google.com> From: Vlastimil Babka Message-ID: <5f53f969-b92e-1d86-6b90-7bd93e390a21@suse.cz> Date: Tue, 26 Jan 2021 19:57:08 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: <20210122220600.906146-2-yuzhao@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 1/22/21 11:05 PM, Yu Zhao wrote: > There is add_page_to_lru_list(), and move_pages_to_lru() should reuse > it, not duplicate it. > > Link: https://lore.kernel.org/linux-mm/20201207220949.830352-2-yuzhao@google.com/ > Signed-off-by: Yu Zhao > Reviewed-by: Alex Shi Acked-by: Vlastimil Babka > --- > mm/vmscan.c | 6 +----- > 1 file changed, 1 insertion(+), 5 deletions(-) > > diff --git a/mm/vmscan.c b/mm/vmscan.c > index 04509994aed4..19875660e8f8 100644 > --- a/mm/vmscan.c > +++ b/mm/vmscan.c > @@ -1823,7 +1823,6 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec, > int nr_pages, nr_moved = 0; > LIST_HEAD(pages_to_free); > struct page *page; > - enum lru_list lru; > > while (!list_empty(list)) { > page = lru_to_page(list); > @@ -1868,11 +1867,8 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec, > * inhibits memcg migration). > */ > VM_BUG_ON_PAGE(!lruvec_holds_page_lru_lock(page, lruvec), page); > - lru = page_lru(page); > + add_page_to_lru_list(page, lruvec, page_lru(page)); > nr_pages = thp_nr_pages(page); > - > - update_lru_size(lruvec, lru, page_zonenum(page), nr_pages); > - list_add(&page->lru, &lruvec->lists[lru]); > nr_moved += nr_pages; > if (PageActive(page)) > workingset_age_nonresident(lruvec, nr_pages); >